Author: Vincent Lejeune
Date: 05:34:53 09/21/99
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On September 21, 1999 at 08:31:24, Vincent Lejeune wrote: >On September 21, 1999 at 07:29:56, guy haworth wrote: > >>Thanks to Eugene and subsequent correspondents for pointing out the gem >>positions with double check by queens. Chess has an infinite ability to >>surprise and delight - and these positions also warn of the dangers of inducing >>rules from partial considerations. >> >>Eugene's example shows that double check is possible in KQQKQQ. >> >>Anthony Bailey's example is not in KQQKQQ but is equally splendid nonetheless. >> >>For the convenience of any other readers, the positions were: >> >>(eg) K7/QPk5/8/8/8/8/8/8 wtm ... 1.b8=Q+ (double check by 2Qs) >> >>(eg) 7K/1p6/k7/P7/Q7/8/Q7/8 wtm ... 1.Q2c4+ b5 2.axb6+ (ep & dblech by 2Qs) >> >>Nothing to do with double check by Queens, but this position eluded me for a >>long time: >> >>8/1P6/8/8/8/K7/8/k7 wtm ... 1.b8=Q or 1.b8=R stalemate! >> ergo, you can't always 'run the P' to win when the bK cannot catch up! > It's was some examples When you have a white queen ,a black king and a white pawn between the queen and the king and next to the king, all this 3 pieces on the 7th rank, when the pawn go to 8th rank and become a queen there's a double check by the 2 queens. Same for the reverse color.
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